Hollywood beauty Megan Fox is reportedly planning to cover one of her arms in a tattoo ''sleeve''. The Transformers star already has seven tattoos, including one of film icon Marilyn Monroe. “Every time I get a tattoo, it’s a little f***-you to anyone who tells me not to,” the Daily Star quoted her s saying.Meanwhile, the 23-year-old actress is being considered to play a young Lara Croft in a new Tomb Raider movie. Angelina Jolie starred in the first two Tomb Raider films in 2001 and 2003, but movie bosses will replace the 33-year-old with a younger star for the next installment.